Important properties associated with catalytic performance over three-dimensionally ordered macroporous CeO2–CuO catalysts

Xu, C.; Hao, Xinya; Gao, Meiyi; Su, Haiquan; Zeng, Shanghong

doi:10.1016/j.catcom.2015.10.025

Cited by 19 publications

(10 citation statements)

References 16 publications

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“…CZ had only one reduction peak at 564 °C assigned to the surface CeO2 reduction [28][29][30]. After the addition of copper, all reduction peaks in the 150-280 °C range were associated with the reduction of Cu species [17,23,29,[31][32][33]. In fact, the reduction of Cu species supported on ceria was complex and controversial.…”

Section: H2-tpr Studiesmentioning

confidence: 99%

Effect of Surface Copper Species on NO + CO Reaction over xCuO-Ce0.9Zr0.1O2 Catalysts: In Situ DRIFTS Studies

Yuan

et al. 2016

Catalysts

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Abstract:In this work, the activity of xCuO-Ce 0.9 Zr 0.1 O 2 catalysts for the reaction of NO + CO was investigated. Especially, in situ DRIFTS was applied to investigate the surface species under the adsorption of NO and/or CO and the reaction of NO and CO to understand the key intermediates species and reaction process of NO + CO. The results suggest that the copper oxide species are well dispersed on the surface of the catalysts, which can be easily reduced to form Cu + species. The Cu + species are proposed to be important activity species. The results of this work also suggest that N 2 O 2 2− is likely an intermediate species that plays an important role in NO reduction by CO. Thus, more Cu + and highly dispersed copper oxide species are expected to be beneficial for the reaction of CO + NO over the xCuO-Ce 0.9 Zr 0.1 O 2 catalysts.

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Section: H2-tpr Studiesmentioning

confidence: 99%

Effect of Surface Copper Species on NO + CO Reaction over xCuO-Ce0.9Zr0.1O2 Catalysts: In Situ DRIFTS Studies

Yuan

et al. 2016

Catalysts

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“…Previous authors have observed similar reduction peaks for Cu based catalysts and have regarded the α reduction peak at about 220–250 °C as the surface reduction peak of dispersed amorphous CuO, whereas the β reduction peaks around 270–300 °C can be classified as the reduction peaks of CuO in the bulk phase with large grains. 31 …”

Section: Resultsmentioning

confidence: 99%

Investigation on the promotional role of Ga₂O₃on the CuO–ZnO/HZSM-5 catalyst for CO₂hydrogenation

Wang

Ding

et al. 2021

RSC Adv.

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“…50 It is well-known that this synergistic effect between them is carried out through a redox mechanism: Cu 2+ + Ce 3+ ↔ Cu + + Ce 4+ . 51,52 The appearance of Ce 3+ marked the formation of oxygen vacancies, which was beneficial to promote the catalytic activity of catalysts. 53,54 The O 1s spectra of Ce 4 Cu 1 -40/BDC and Ce-40/BDC catalysts were presented in Figure 6c.…”

Section: Resultsmentioning

confidence: 99%

Confined Growth of Cu-Doped CeO₂ Nanostructures in Boron-Rich Carbon Frameworks for Acetone Oxidation

Liu

Han

et al. 2021

ACS Appl. Nano Mater.

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The design and synthesis of low-cost, excellent catalytic activity catalysts is the key to catalytic oxidation of VOCs. Nanomaterials have attracted great interest in recent years. Here, a simple impregnation method was used to synthesize the Cu-doped CeO 2 nanostructure catalyst supported on a boron-rich carbon carrier and applied for the catalytic oxidation of acetone. After trace amounts of Cu were added to the single CeO 2 supported on boronrich carbon catalyst, Cu-doped CeO 2 catalyst displayed better catalytic activity. Besides, it also has long-term stability and H 2 O resistance. The influence of copper doping on the performance of the catalyst was studied by many characterization technologies. The result indicated that the introduction of Cu can further limit the growth of CeO 2 grains based on the limited growth of metal nanoparticles on the carrier, can make the amounts of Ce 3+ and adsorb oxygen species increase, and can enhance the redox properties of CeO 2 . Therefore, Cu-doped CeO 2 nanostructures in a boron-rich carbon catalyst have the potential for the removal of acetone.

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Important properties associated with catalytic performance over three-dimensionally ordered macroporous CeO2–CuO catalysts

Cited by 19 publications

References 16 publications

Effect of Surface Copper Species on NO + CO Reaction over xCuO-Ce0.9Zr0.1O2 Catalysts: In Situ DRIFTS Studies

Effect of Surface Copper Species on NO + CO Reaction over xCuO-Ce0.9Zr0.1O2 Catalysts: In Situ DRIFTS Studies

Investigation on the promotional role of Ga₂O₃on the CuO–ZnO/HZSM-5 catalyst for CO₂hydrogenation

Confined Growth of Cu-Doped CeO₂ Nanostructures in Boron-Rich Carbon Frameworks for Acetone Oxidation

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Important properties associated with catalytic performance over three-dimensionally ordered macroporous CeO2–CuO catalysts

Cited by 19 publications

References 16 publications

Effect of Surface Copper Species on NO + CO Reaction over xCuO-Ce0.9Zr0.1O2 Catalysts: In Situ DRIFTS Studies

Effect of Surface Copper Species on NO + CO Reaction over xCuO-Ce0.9Zr0.1O2 Catalysts: In Situ DRIFTS Studies

Investigation on the promotional role of Ga2O3on the CuO–ZnO/HZSM-5 catalyst for CO2hydrogenation

Confined Growth of Cu-Doped CeO2 Nanostructures in Boron-Rich Carbon Frameworks for Acetone Oxidation

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Product

Resources

About

Investigation on the promotional role of Ga₂O₃on the CuO–ZnO/HZSM-5 catalyst for CO₂hydrogenation

Confined Growth of Cu-Doped CeO₂ Nanostructures in Boron-Rich Carbon Frameworks for Acetone Oxidation